He was just as interested in sex with Picard. And you are correct, it's not how we would see it. He picks the top human on a ship and tries to make them like him. He eventually figures out that sex is the ultimate expression of liking and so if that is part of the wooing success he's up for it.

His ultimate goal is to have the human be wooed.

If that means sex, tea, puppies.. whatever, he doesn't care. He just wants to win in the wooing game.